Labels and Annotations

labels and annotations traits allow us to mark annotations and labels on Pod for workload.

Note: labels and annotations traits are hidden by default in VelaUX, you can use them in CLI.

Specification

$ vela show annotations

# Properties

+-----------+-------------+-------------------+----------+---------+

| NAME | DESCRIPTION | TYPE | REQUIRED | DEFAULT |

+-----------+-------------+-------------------+----------+---------+

| - | | map[string]string | true | |

+-----------+-------------+-------------------+----------+---------+

$ vela show labels

# Properties

+-----------+-------------+-------------------+----------+---------+

| NAME | DESCRIPTION | TYPE | REQUIRED | DEFAULT |

+-----------+-------------+-------------------+----------+---------+

| - | | map[string]string | true | |

+-----------+-------------+-------------------+----------+---------+

They're all string Key-Value pairs.

How to use

# myapp.yaml

apiVersion: core.oam.dev/v1beta1

kind: Application

metadata:

name: myapp

spec:

components:

- name: express-server

type: webservice

properties:

image: crccheck/hello-world

port: 8000

traits:

- type: labels

properties:

"release": "stable"

- type: annotations

properties:

"description": "web application"

Then the labels and annotations will mark on pods.